Quarterly report pursuant to Section 13 or 15(d)

Stock Compensation -Restricted stock- Activities in period (Details)

v3.5.0.2
Stock Compensation -Restricted stock- Activities in period (Details)
9 Months Ended
Sep. 30, 2016
$ / shares
shares
Restricted shares  
Restricted Stock (in shares)  
Outstanding at December 31, 2015 769,947
Granted 199,155
Vested (59,420)
Forfeited (128,705)
Outstanding at September 30, 2016 780,977
WAEP (in dollars per share)  
Outstanding at December 31, 2015 | $ / shares $ 29.22
Granted | $ / shares 28.77
Vested | $ / shares 21.28
Forfeited | $ / shares 28.25
Outstanding at September 30, 2016 | $ / shares $ 29.87
Share-based Compensation Award, Tranche One | Restricted Stock Units  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Restricted stock units, outstanding 96,394
Restricted Stock Units, Forfeited 10,676
Share-based Compensation Award, Tranche Two | Restricted Stock Units  
Restricted Stock (in shares)  
Granted 80,235
WAEP (in dollars per share)  
performance basis threshold 105.00%
Minimum | Share-based Compensation Award, Tranche One | Restricted Stock Units  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Restricted stock units, outstanding 48,197
Restricted Stock Units, Forfeited 5,338
Maximum | Share-based Compensation Award, Tranche One | Restricted Stock Units  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Restricted stock units, outstanding 192,788
Restricted Stock Units, Forfeited 21,352
Maximum | Share-based Compensation Award, Tranche Two | Restricted Stock Units  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Restricted Stock Units, Forfeited 8,548